3.4
Electrical diagram
Fig.2
Electrical diagram
X1
X2
1
2
3
4
1
2
3
GN/
BR
BL
YW
GN/
YW
GN/
YW
BL
BR
1
2 3
K1
N
L
230V, 50Hz
1
2
X10
1
2 3
8
9
10 11
BK
BL
RD
BK
BK
1
1
3 1
X114
X115
X112
2
2
2
10
11
12
1 Power supply (P)
2 Extended PCB (SCU)
3 On/off switch (S)
4 Fan (FAN)
5 Ignition transformer (IT)
6 Ignition pin (E)
7 Gas combination block (GB)
8 Circulating pump (pump A)
9 High limit switch (HLS)
10 Return sensor (RTS)
123157 - v.07 - 10082015
X3
4
5
3 2 1
1 2 3
GN/
BR
BL
YW
BL
BR
GN/
YW
3 1
3 1 2
X51
4 2
X41
3
4
4 5 7 6
12 13
1 2 3 4 5 6
OR
BK
BK
BK
WH
BK
BK
BK
1 2
1 2 3 4
X111
X116
13
14
2
X4
X5
2 3 4 1
GY
BK
BL
BR
GN/
BL
YW
3
1 2
X51
5
6
X11
1 2
3 4 5 6
YW
RD
GY
GN
15
X3
X2
X1
11 Flow sensor (FTS)
12 Pressure switch (PS)
13 Storage parameter (PSU)
14 Circulating pump (PWM pump)
15 Thermostat (OT)
16 Outside sensor (OS)
17 Calorifier sensor (WS)
18 Computer connection (PC)
19 Display (DIS)
3 Technical specifications
X6
X8
1 2 3
1 2 3
GN/
GN/
YW
YW
WH
BR
BL
BL
2 1 3
X81
3
5
1
3 1 2
X21
7
8
9
X12
7 8
9 1 0
16
17
X4
X5
X6
18
X7
X8
X9
X10
X11
X14
X13 X12
X9
1
2 3 4 5
BK
BK
BK
BK
BK
BK
1
1 2 4 5
X117
X91
2
4
X13
X14
1
1 10
1 10
19
AD-0000062-01
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